The Book of Obsession
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Season 2
Episode Number 13
Production Code Unknown
Original Airdate August 13, 2016
Episode Guide
Greed is Good?
The King's Tournament

The Book of Obsession is the third episode of Season 2 of Nexo Knights, and the thirteenth episode overall. It first aired on August 13, 2016.

Official Description

The knights are tasked with protecting the King's valuable Ned Knightley comic book during the Bookingheim Knight-a-Con. But with all the costumed kids there, will they recognise the real Jestro and Book of Monsters coming to get them?




  • This episode marks the debut of Robin's Mini-trex.
  • The event in the episode, Knight-a-Con was a wordplay of the San Diego Comic Con. Coincidentally, Comic Con was one of the main events where most of the Lego theme products was shown and displayed; Ninjago and Nexo Knights.
  • The theme Robin plays on the Mini-trex is Nexo Knights theme song, Unbreakable without the lyrics.
  • This is the first time the Nexo Knights succeed in preventing the Book of Monsters from eating his intended meal (in this case, the Ned Knightley comic book).
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